Foam gun



FIG. 1 is a top view of a foam gun.

FIG. 2 is a bottom view of a foam gun.

FIG. 3 is a perspective view of a foam gun showing the front and right side.

FIG. 4 is a rear view of a foam gun; and,

FIG. 5 is a left side view of a foam gun. 

CLAIM The ornamental design for a foam gun, as shown and described. 